APInt-ify the gep scaling code, so that it correctly handles the case where
the scale overflows pointer-sized arithmetic. This fixes PR5281.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84954 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/X86/large-gep-scale.ll b/test/CodeGen/X86/large-gep-scale.ll
new file mode 100644
index 0000000..143294e
--- /dev/null
+++ b/test/CodeGen/X86/large-gep-scale.ll
@@ -0,0 +1,12 @@
+; RUN: llc < %s -march=x86 | FileCheck %s
+; PR5281
+
+; After scaling, this type doesn't fit in memory. Codegen should generate
+; correct addressing still.
+
+; CHECK: shll $2, %edx
+
+define fastcc i32* @_ada_smkr([2147483647 x i32]* %u, i32 %t) nounwind {
+ %x = getelementptr [2147483647 x i32]* %u, i32 %t, i32 0
+ ret i32* %x
+}